import book.BookList;
import user.AdminUser;
import user.NormalUser;
import user.User;

import java.util.Scanner;

public class Main {
    //向上转型作为参数
    public static User login() {//登录
        System.out.println("请输入你的姓名：");
        Scanner scanner = new Scanner(System.in);
        String name = scanner.nextLine();
        System.out.println("请输入你的身份：1->管理员  0->普通用户");
        int choice = scanner.nextInt();
        if (choice == 1) {
            return new AdminUser(name);
        } else  {
            return new NormalUser(name);
        }
    }
    public static void main(String[] args) {
        //准备数据
        BookList booklist = new BookList();
        //登录
        User user = login();
        while (true){
            int choice = user.menu();//这里的choice用来接收AdminUser和NormalUser中返回的操作；
            user.doWork(choice, booklist);
         }
    }
}
